<template>
	<div>
		<!-- 面包屑导航区 -->
		<el-breadcrumb separator-class="el-icon-arrow-right">
			<el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
			<el-breadcrumb-item>数据统计</el-breadcrumb-item>
			<el-breadcrumb-item>数据报表</el-breadcrumb-item>
		</el-breadcrumb>
		<!-- 卡片视图 -->
		<el-card>
			<!-- 2.为Echarts准备一个Dom -->
			<div id="main" style="width: 750px;height:400px;"></div>
		</el-card>
	</div>
</template>

<script>
	// 1.导入echarts
	import echarts from 'echarts'
	import _ from 'lodash'

	export default {
		data() {
			return {
				// 需要合并的数据
				options: {
					title: {
						text: '用户来源'
					},
					tooltip: {
						trigger: 'axis',
						axisPointer: {
							type: 'cross',
							label: {
								backgroundColor: '#E9EEF3'
							}
						}
					},
					grid: {
						left: '3%',
						right: '4%',
						bottom: '3%',
						containLabel: true
					},
					xAxis: [{
						boundaryGap: false
					}],
					yAxis: [{
						type: 'value'
					}]
				}
			}
		},
		created() {

		},
		// 此时,页面上的元素,已经被渲染完毕了
		async mounted() {
			// 3.基于准备好的dom，初始化echarts实例
			var myChart = echarts.init(document.getElementById('main'))
			const {
				data: res
			} = await this.$http.get('reports/type/1')
			if (res.meta.status !== 200) return this.$message('获取折线图数据失败!')
			// 4.准备数据项和配置项
			// 指定图表的配置项和数据
			// var option = {
			//   title: {
			//     text: 'ECharts 入门示例'
			//   },
			//   tooltip: {},
			//   legend: {
			//     data: ['销量']
			//   },
			//   xAxis: {
			//     data: ['衬衫', '羊毛衫', '雪纺衫', '裤子', '高跟鞋', '袜子']
			//   },
			//   yAxis: {},
			//   series: [{
			//     name: '销量',
			//     type: 'bar',
			//     data: [5, 20, 36, 10, 10, 20]
			//   }]
			// }
			// 数据合并
			const result = _.merge(res.data, this.options)
			// 5.展示数据
			myChart.setOption(result)
		},
		methods: {

		}
	}
</script>

<style lang="less" scoped>

</style>
